Logic Masters Deutschland e.V.

Normal sudoku rules apply.

Region Sum Lines: Box borders divide a blue line into segments which have the same sum. Different lines may have different sums.

Renban: Digits along a purple line form a set of consecutive digits in any order.

German Whisper: Adjacent digits along a green line have a difference of at least 5.

White Dots: Digits in cells joined by a white dot are consecutive.

Gray Dots: Digits in cells connected by a gray dot are either consecutive or in a 1:2 ratio (or both).

Yellow Dots: Digits in cells joined by a yellow dot are not consecutive.